JPH11198751A - Instrument panel formed integrally with air bag door part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a total cost remarkably and also increase workability. SOLUTION: A door base material 24 of an air bag door part 10 is formed integrally with an instrument panel base material 14 through a door hinge part 42. Immediately after it is formed, it is still soft and a door free end part 24A of the door base material 24 is positioned on the upper side of an opening 22. The door free end part 24A is deformed elastically forcibly and locked with a rear end side peripheral edge part of the instrument panel base material 14 so as to, after cooling, closely fit the door free end part 24A in the state of being overlapped with the rear end side peripheral edge part 14A by a spring back force. Thus, a total cost can be reduced as compared with that needed when the door base material 24 is formed separately from the instrument panel base material 14, and also urethane leak preventing measure is not required whereby workability is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a base material layer, a skin layer,
And an instrument panel integrally including an airbag door portion including a foam layer.

[0002]

2. Description of the Related Art With the promotion of standard equipment of an airbag device for a passenger seat, an instrument panel integrally having an airbag door portion has been actively developed. Japanese Patent Application Laid-Open No. 8-31 discloses an example of this type of instrument panel.
No. 0330, etc., and the configuration disclosed in this publication will be briefly described below.

As shown in FIG. 6, an instrument panel 100 is disposed on the back side and has an instrument panel base material 104 having an opening 102 at a predetermined position on the passenger seat side, and is spaced apart from the instrument panel base material 104. The instrument panel skin 106 and the foam layer 108 filled between the instrument panel base material 104 and the instrument panel skin 106 form a three-layer structure.

The instrument panel 100 having the above configuration
An airbag door portion 114 composed of a door base material 110, a door skin 112, and the foam layer 108 is integrally formed at a predetermined position on the passenger seat side. In addition, hinge portions 116 when the airbag door portion 114 is deployed are formed at two locations on the door base 110 substantially on the front side of the vehicle.

Further, in the above structure, the door base material 1
10. The hinge 110 on the side where the hinge 116 is formed in FIG.
04A, the lower surface of the strip-shaped reinforcing bar 11
8 and the frame member 120, and in this state, the hinge portion side peripheral portion 110 </ b> A is fixed to the opening peripheral portion 104 </ b> A by a plurality of bolts 122. Thus, the strength of attaching the door base 110 to the instrument panel base 104 is improved.

[0006]

However, in the case of the configuration disclosed in the above-mentioned publication, the door material 11 is inherently required.
Since the instrument panel 0 and the instrument panel base material 104 are formed separately, a dedicated mold is required for each, and the mold cost increases.

The door base 110 and the instrument panel base 10
4, the hinge portion side peripheral portion 110A of the door substrate 110 needs to be fixed to the opening peripheral portion 104A of the instrument panel substrate 104, as in the configuration disclosed in the above publication. As much work is required, workability also decreases.

Moreover, the door substrate 110 and the instrument panel substrate 1
When the cover 04 is formed as a separate member, shrinkage variation after molding occurs, and a gap is easily formed between the door base 110 and the opening peripheral portion 104A of the instrument panel base 104. Although this gap is formed in both the front-rear direction and the door width direction of the door, it is difficult to suppress the gap in all of these directions to a certain size or less only by mold accuracy. For this reason, the door base 110 and the instrument panel base 1 are used as measures for preventing urethane leakage during foam molding.
It is necessary to take measures to prevent urethane leakage, such as attaching a tape to the back surface of the joint of the opening 04 with the peripheral edge portion 104A, and the workability is reduced in this respect as well.

The present invention has been made in view of the above-described circumstances, and has as its object to provide an instrument panel having an airbag door unit which can greatly reduce total cost and improve workability. .

[0010]

According to a first aspect of the present invention, there is provided an instrument panel base material disposed on a back surface side, which is accommodated in an opening formed at a predetermined position on a passenger seat side of the instrument panel base material, and is provided in front of a vehicle. A base material layer such as a door base material that expands by receiving a bag inflation pressure when a predetermined high load is applied to the part, and is separated from the instrument panel skin and the door base material that are separated from the instrument panel base material. An instrument panel integrally having an airbag door portion including a skin layer such as a door skin disposed therein, and a foam layer filled between the base material layer and the skin layer, When the door base is formed integrally with the instrument panel base through a door hinge part serving as a center of deployment of the door base, and the airbag door part is developed in one direction, the door hinge part is provided in the door base. And anti The door free end which is located on the side,
If the airbag doors are to be elastically locked after being overlapped on the back surface of the opening peripheral portion of the instrument panel base material and the airbag doors are deployed in directions away from each other, the door free end of one door base material Is overlapped with the back surface of the free end of the door of the other door base material and is elastically locked.

According to the second aspect of the present invention, there is provided an instrument panel integrally having an airbag door portion according to the first aspect of the present invention, wherein an instrument panel is provided between the door hinge portion and the free end portion of the door base material. A door hinge different from the door hinge is provided.

According to the first aspect of the present invention, when a predetermined high load is applied to the front portion of the vehicle, the inflation pressure of the bag acts on the door base material of the airbag door portion. The bag door is deployed.

Here, in the present invention, since the door base is formed integrally with the instrument panel base via the door hinge portion serving as the center of deployment, the molding die including both the instrument panel base and the door base is provided. If there is, it can be molded. For this reason, the mold cost can be significantly reduced. In addition, as compared with the case where the door base and the instrument panel base are separately formed, a fixing tool or a reinforcing material for fixing the door base to the instrument panel base is not required. Also leads to cost reduction.

In addition, since the door base and the instrument panel base are formed integrally, there is no need to fix both at the door hinge.

Further, according to the present invention, when the airbag door portion is deployed in one direction, the door free end located on the opposite side of the door base from the door hinge portion is provided with:
Since it is configured to overlap with the back surface of the opening peripheral portion of the instrument panel base material and to be elastically locked, the surface of the free end portion of the door is in close contact with the back surface of the opening peripheral portion of the instrument panel base material. Therefore, there is no gap between the free end of the door and the peripheral edge of the opening of the instrument panel base material. In addition, in the peripheral portion other than the door free end portion, since the door base material is integrally formed with the instrument panel base material, if the mold accuracy is managed,
Almost no gap can be formed between the peripheral edge of the door substrate other than the door free end and the opening peripheral edge of the instrument panel substrate. Therefore, there is no need to take measures to prevent the foam material from leaking during foam molding.

In the present invention, when the airbag doors are deployed in the directions away from each other, the door free end of one door base is attached to the back surface of the door free end of the other door base. Although they are overlapped and elastically locked, in this case, the effect of eliminating the foam material leakage prevention measure can be similarly obtained.

According to the second aspect of the present invention, another door hinge different from the door hinge is provided between the door hinge and the door free end of the door base.
Even after the instrument panel base material including the door base material has been formed, even after the instrument panel base material is cooled, the door base material can be bent with the another door hinge portion as a starting point. For this reason, the door free end is forcibly sunk into the back surface of the opening peripheral portion of the instrument panel base material, or the door free end portion of one door base material is forced into the back surface of the door free end portion of the other door base material. It can be elastically locked. When the door base material is deployed by receiving the bag inflation pressure, the door base material can be deployed while being bent in two stages.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment A first embodiment of the present invention will be described below with reference to FIGS.

FIG. 2 is an external perspective view of an instrument panel 12 having an airbag door section 10 provided on the top of the passenger seat, and FIG. 1 includes the airbag door section 10. The longitudinal sectional structure of the instrument panel 12 is shown.

As shown in these figures, the instrument panel 12 includes an instrument panel base 14 arranged on the back side, an instrument panel skin 16 spaced apart from the instrument panel base 14, And a foam layer 18 filled by urethane foam molding between the instrument panel base material 14 and the instrument panel skin 16. The instrument panel base 14 is made of a relatively hard resin material, while the instrument panel skin 16 is made of a relatively soft resin material. A plurality of reinforcing ribs 20 are integrally formed at appropriate intervals on the occupant side on the back surface of the instrument panel base material 14.

On the other hand, the airbag door portion 10 is provided with a door base material 24 accommodated in a rectangular opening 22 formed at a position where the door portion is provided in the instrument panel base material 14, and a door base material 24 with respect to the door base material 24. It is constituted by a door skin 26 which is spaced apart, and the above-described foam layer 18 filled between the door base material 24 and the door skin 26. The door skin 26 is made of the same material as the instrument panel skin 16, and is separated from the instrument panel skin 16 by a tear portion 28 formed by being cut into the tip after being closely attached in a U-shape.

An airbag device main body 32 which constitutes an airbag device 30 for a passenger seat with the airbag door portion 10 is disposed substantially below the airbag door portion 10 in the vehicle. Briefly, the airbag device main body 32 includes a metal airbag case 34 whose upper side is substantially opened. The airbag case 34
It is supported via a bracket on an instrument panel reinforcement (not shown), which is a high-strength member disposed substantially along the vehicle width direction.

At the bottom of the airbag case 34, a substantially cylindrical inflator 36 which is activated by an airbag sensor detecting a predetermined high load acting state on the front portion of the vehicle.
Are arranged. Inside the inflator 36, an igniter that ignites the igniting agent when an operating current is supplied from the center control unit, a gas generating agent that burns when the igniting agent is ignited to generate a large amount of gas, A filter for removing debris after burning of the gas generating agent, a coolant for cooling high-temperature gas, and the like are accommodated. Further, a bag 38, which is inflated by gas ejected from the inflator 36, is accommodated in a folded state in the upper part of the airbag case 34.

Next, the configuration of the door substrate 24 of the airbag door section 10, which is a main part of the present embodiment, will be described in detail in relation to the instrument panel substrate 14.

A notch 40 having a V-shaped cross section is formed along the front edge of the door on the back surface of the door base 24 on the front side of the door. Due to the formation of the notch 40, the thickness of the door base material 24 is reduced at this portion, and functions as a door hinge portion 42 when the airbag door portion 10 is deployed. The door base 24 is formed integrally with the instrument panel base 14 via the door hinge portion 42. That is, the door base material 24 according to the present embodiment
Is formed by being integrally formed with the instrument panel base material 14, unlike the conventional structure.

As shown in FIG. 3 in an enlarged manner, the door free end 24A (door rear edge) of the door base 24 is
The lower side is formed in a step shape extending toward the rear side of the door from the upper side. The lower surface of the door free end 24 </ b> A of the door base 24 is elastically abutted against the rear surface of the rear end side peripheral part 14 </ b> A of the opening 22 of the instrument panel base 14. The wrap margin P between the door free end 24A and the rear edge 14A of the instrument panel base 14 is such that the airbag door 10 does not hinder the deployment operation when the airbag door 10 is deployed by the bag inflation pressure ( In this embodiment, it is set to about 3 mm).

The airbag door 10 of this embodiment is
Is a type that unfolds toward the windshield glass side, but the above-mentioned elastic locking structure is adopted only on the door free end 24A side (that is, on the door rear edge side), It is not adopted because it does not need to be adopted on the edge.

Next, the operation and effect of this embodiment will be described. The state shown in FIG.
And the state immediately after the door base material 24 is injection-molded.
As shown in this figure, the door base 24 is integrated with the instrument panel base 14 via the door hinge 42. In a soft state immediately after molding, the door free end 24A of the door base material 24 is raised above the rear end side peripheral portion 14A of the opening 22 of the instrument panel base material 14. That is, as described above, the door free end portion 24 </ b> A is
The shape of the mold is set in advance so as to float above A.

Next, the door base material 24 is elastically deformed around the door hinge portion 42 as a center of rotation so that the door free end portion 24A
Is forcibly sunk under the rear edge portion 14A of the opening 22. After the door base material 24 is cooled, an elastic restoring force (spring back force) is generated in the door base material 24 so as to return to the original position (ie, the position shown in FIG. 4), and the door is free due to this elastic restoring force. The lower surface of the end portion 24A abuts on the rear surface of the rear end side peripheral portion 14A in close contact with and is locked. This state is the state shown in FIG.

After the instrument panel base material 14 and the door base material 24 are formed in this manner, the instrument panel skin 16 and the door skin 26 that have been formed in advance are set in different molds, and the instrument panel base material 14 and the door base material 24 are set. A foaming material (urethane) is filled between the base material layer such as 24 and the skin layers such as the instrument panel skin 16 and the door skin 26 and foamed. Thereby, the instrument panel 12 having the airbag door unit 10 integrally is formed.

Thereafter, when the airbag device main body 32 is assembled to the instrument panel reinforcement and the instrument panel 12 is assembled, the state shown in FIGS. 1 and 2 is obtained.

On the other hand, when a predetermined high load is applied to the front portion of the vehicle, the airbag sensor detects this state, and an operating current is supplied to the ignition device of the inflator 36 from the center control unit. Thereby, the ignition agent is ignited and the gas generating agent is burned. For this reason, a large amount of gas is generated, and the gas is cooled by the coolant, and is spouted into the bag 38 after debris is removed by a filter. As a result, the folded bag 38 expands and pushes up the door base material 24 of the airbag door section 10 from the back side.

The door base material 24 is slightly elastically deformed when subjected to the bag inflation pressure, whereby the locked state between the door free end 24A and the rear end side peripheral portion 14A of the opening 22 of the instrument panel base 14 is released. . As a result, the bag inflation pressure also acts on the foam layer 18 and the door skin 26 of the airbag door section 10 to break the foam layer 18 and to separate (peel) the door skin 26 from the instrument panel skin 16 along the tier section 28. Then, the airbag door section 10 is unfolded toward the windshield glass via the door hinge section 42 in a one-sided manner. As a result, the bag 38 is expanded toward the occupant sitting on the passenger seat.

As described above, in this embodiment, the door base material 24
Is formed integrally with the instrument panel base material 14 via the door hinge portion 42 serving as the center of deployment, so that there is a molding die including both the instrument panel base material 14 and the door base material 24, so that molding can be performed. For this reason, the mold cost can be significantly reduced. In addition, as compared with the case where the door base and the instrument panel base are separately formed, a fixing tool or a reinforcing material for fixing the door base to the instrument panel base is not required. Also leads to cost reduction. As a result, according to the present embodiment, the total cost of the instrument panel 12 integrally including the airbag door portion 10 can be significantly reduced.

Further, in this embodiment, since the door base 24 and the instrument panel base 14 are formed integrally, there is no need for an operation of fixing the both at the door hinge.

Further, according to this embodiment, when the airbag door portion 10 is unfolded in one direction toward the windshield glass when a predetermined high load is applied to the front portion of the vehicle, the airbag door portion 10 is opposite to the door hinge portion 42. The door free end 24A located on the side is overlapped with the back surface of the rear end side peripheral portion 14A of the opening 22 of the instrument panel base 14, and then the elastic restoring force (spring back force) of the door base 24 is provided.
, The lower surface of the door free end 24A can be brought into close contact with the back surface of the rear edge 14A. For this reason, there is no gap between the free end 24A of the door and the peripheral edge 14A on the rear end side of the opening 22 of the instrument panel base material 14. Further, in the peripheral portion (peripheral portion on both sides in the door width direction) of the door base material 24 other than the door free end portion 24A, since the door base material 24 is formed integrally with the instrument panel base material 14, If the mold accuracy is controlled, it is possible to make almost no gap between the peripheral edge portion other than the door free end portion 24A and the peripheral edge portions on both sides of the opening 22 of the instrument panel base material 14 (according to the present embodiment). In this case, it is possible to reduce the gap to 0.1 mm or less.) Therefore, there is no need to take any measures to prevent leakage of the foam material (urethane) during foam molding.
There is no need to perform urethane leakage prevention measures (tape sticking and peeling work, etc.).

That is, according to the present embodiment, the work of fixing the door base material 24 to the instrument panel base material 14 and the measures for preventing the foam material (urethane) from leaking can be eliminated, so that the workability can be significantly improved. it can. [Second Embodiment] A second embodiment of the present invention will be described below with reference to FIG.

As shown in FIG. 5, in this embodiment, a door hinge portion 54 provided by forming a notch 52 on the surface of a door base material 50 and having the same configuration as that of the above-described first embodiment is provided. Another door hinge portion 56 having a rectangular cross section is formed at a position near the middle of the end portion 50A. Thereby, the portion where the door hinge portion 56 is formed is thinned, and is easily bent when a forced pushing force is applied to the door base material 50 or when a bag inflation pressure is applied. I have.

The lower surface of the door free end 50A is provided with an instrument panel base 58 in the same manner as in the first embodiment.
The rear end side peripheral portion 58A is locked by an elastic restoring force (spring back force) in an overlapping state. The door substrate 50 and the instrument panel substrate 58 according to the present embodiment are made of a hard resin material such as ASG (resin mixed with glass).

According to the above configuration, after the instrument panel base member 58 on which the door base member 50 is integrally formed is formed and then cooled, the door free end portion 50A of the door base member 50 is in contact with the instrument panel base member 58. Is in a state of being raised from the rear end side peripheral portion 58A. Here, since the door base material 50 and the instrument panel base material 58 according to the present embodiment are made of a hard resin material such as ASG, the door base material 50 and the instrument panel base material 58 are originally unlikely to bend. However, in the present embodiment, the door hinge portion 54 and the door free end portion 50A
Since another door hinge part 56 was formed near the middle of
By pushing down the door base material 50, the door base material 50 is bent starting from the door hinge portion 56. Thereby, the door free end 50A of the door base material 50 can be forcedly sunk into the back surface of the rear end side peripheral portion 58A of the instrument panel base material 58 and can be elastically locked.

When a predetermined high load acts on the front portion of the vehicle and the bag 38 is inflated, the bag inflation pressure at that time acts on the back side of the door base material 50. At this time, since the door base material 50 of the present embodiment is made of a hard resin material such as ASG as described above, there is a disadvantage that it is difficult to flexibly bend when the door base material is deployed by the bag inflation pressure. But,
According to the present embodiment, another door hinge portion 56 is formed near the middle between the door hinge portion 54 and the door free end portion 50A, so that the door base material 50 is basically formed with the front end side door hinge portion 54 as the deployment center. When the bag is inflated and the bag inflation pressure when the bag 38 inflates becomes a predetermined value or more, the bag 38 is bent toward the windshield glass from another door hinge 56.

That is, according to the present embodiment, instead of forming the door base 50 integrally with the instrument panel base 58 using a hard resin material, a bendable portion (another door hinge portion 56) is provided on the door base. It is provided separately on the material 50, thereby ensuring the assembling property after molding and the smooth deployment performance.

As a result, according to the present embodiment, as described above, it is possible to apply a hard resin material such as ASG as the door base material 50 and the instrument panel base material 58, thereby increasing the degree of freedom in material selection. Can be enhanced.

Further, according to the present embodiment, the door substrate 5
0 can be expanded while being bent in two stages, so that the door hinge portion 54 on the front end of the door when the bag 38 is inflated as compared with the configuration in which the single door hinge portion 42 is provided as in the first embodiment. Can be reduced. Therefore, it is possible to prevent the door hinge portion 54 from being damaged when the bag 38 swells.

In each of the embodiments described above, the airbag door portion 10 is unfolded unidirectionally in one direction toward the windshield glass. However, the present invention is not limited to this, and the airbag door portions are separated from each other. The present invention is also applicable to a configuration in which the two-sided expansion is performed in the direction in which the opening is formed. In this case, i.e., in the case of an airbag door that expands in both directions,
The door base material located on the occupant side is formed so as to have a floating structure as shown in FIG.
The door base material located on the side opposite to the occupant is formed into a continuous planar structure (that is, a structure that is not a floating structure) with respect to the instrument panel base material. Then, an elastic restoring force (spring-back force) is applied to the door free end of the door base material located on the occupant side and the door free end of the door base material located on the opposite occupant side. Lock. With this configuration, the same operation and effect as those of the first embodiment can be obtained.

In the first embodiment, the door free end 24A of the door base material 24 is overlapped with the rear end side peripheral portion 14A of the opening 22 of the instrument panel base material 14, and is elastically locked. Although foam molding is performed in this state, the present invention is not limited to this. Silicone rubber or the like is applied to the surface of the mold corresponding to the portion where the free end 24A of the door and the peripheral edge 14A on the rear end side overlap during foam molding. May be interposed in advance. By doing so, the degree of close contact between the free door end 24A and the rear peripheral edge 14A during foam molding can be further increased. Note that this also applies to the second embodiment.

Further, in each of the above-described embodiments, the door skin 26 and the instrument panel skin 16 are partitioned by the tier portion 28. However, the present invention is not limited to this, and the door skin 26 and the instrument panel skin 1 are not limited thereto.
6 is not partitioned when viewed from the indoor side, that is,
Both may be configured integrally. In this case, a configuration may be added in which a V-groove-shaped skin tearing portion is set from the back side to a portion corresponding to the tier portion 28.

In the second embodiment, the door hinge 5
A configuration is adopted in which another door hinge portion 56 is provided near the middle of the door 4 and the door free end portion 50A.
A configuration in which a plurality of door hinge portions are provided between the door hinge portion 54 and the door free end portion 50A may be adopted.

[0049]

As described above, the instrument panel according to the first aspect of the present invention having the airbag door portion integrated therewith is provided with the door base through the door hinge portion which is the center of deployment of the door base material. When the material is formed integrally with the instrument panel base material, and the airbag door portion is deployed in one direction, the door free end located on the side opposite to the door hinge portion in the door base material is attached to the instrument panel base material. In the case where the airbag door portion is elastically locked after being overlapped with the back surface of the opening peripheral portion of the opening, and the airbag door portion is deployed in the direction away from each other, the door free end of one door base material,
Since it is overlapped with the back surface of the free end of the door on the other door base material and is elastically locked, it is possible to greatly reduce the die cost and the like, and as a result, the total cost is greatly reduced. It has an excellent effect that it can be performed.

Further, according to the present invention, the work of fixing the door base material to the instrument panel base material and the measures for preventing foam material from leaking can be abolished, so that there is an excellent effect that workability can be improved. .

According to the second aspect of the present invention, there is provided an instrument panel integrally having an airbag door portion according to the first aspect of the present invention, wherein: Since a different door hinge portion different from the door hinge portion is provided, the door free end can be forcibly sunk even after the instrument panel base material including the door base material is cooled during assembly. In addition, when the bag is inflated, the door base material can be expanded while being bent in two stages, and as a result, a hard material such as ASG (resin mixed with glass) as the door base material (and instrument panel base material) can be obtained. It is also possible to use a resin material, which has an excellent effect that the degree of freedom in material selection can be increased.

[Brief description of the drawings]

FIG. 1 is a view showing a longitudinal sectional structure of an instrument panel having an airbag door unit according to a first embodiment.
1 is a sectional view taken along line 1-1.

FIG. 2 is an external perspective view of an instrument panel integrally having an airbag door unit according to the first embodiment.

FIG. 3 is an enlarged sectional view showing a main part of the door base shown in FIG. 1 elastically locked to the instrument panel base;

FIG. 4 is an enlarged sectional view of a main part corresponding to FIG. 3, showing a state immediately after molding of a door substrate and an instrument panel substrate.

FIG. 5 is an enlarged sectional view of a main part corresponding to FIG. 3, showing a second embodiment in which another door hinge portion is provided on a door base material.

FIG. 6 is a longitudinal sectional view showing an instrument panel integrally having an airbag door portion according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Airbag door part 12 Instrument panel 14 Instrument panel base material 14A Rear end side peripheral part (opening peripheral part) 16 Instrument panel skin 18 Foam layer 22 Opening 24 Door base material 24A Door free end part 26 Door skin 38 Bag 42 Door hinge part 50 Door base material 50A Door free end portion 54 Door hinge portion 56 Another door hinge portion 58 Instrument panel base material 58A Rear end side peripheral portion (opening peripheral portion)

Claims (2)

[Claims] 1. An instrument panel base material arranged on a back side and a bag inflation pressure which is accommodated in an opening formed at a predetermined position on a passenger seat side of the instrument panel base material and when a predetermined high load acts on a front portion of a vehicle. A base material layer such as a door base material to be received and deployed; a skin layer such as an instrument panel skin separated from the instrument panel base material and a door skin separated from the door base material; An instrument panel integrally having an airbag door portion configured to include a foam layer filled between a material layer and a skin layer, through a door hinge portion serving as a deployment center of a door base material. When the door base is formed integrally with the instrument panel base, and when the airbag door section is deployed in one direction, the door free end located on the opposite side of the door base from the door hinge section in the door base, The said a When the airbag doors are deployed in the direction away from each other, the free end of one of the door bases must be An instrument panel integrally having an airbag door portion, wherein the instrument panel is overlapped with a back surface of a free end portion of the other door base material and is elastically locked. 2. The airbag door according to claim 1, wherein another door hinge different from the door hinge is provided between the door hinge and the free end of the door base. Instrument panel with integrated part.